NCLR250 - 250 Amp Fuse Description
NCLR250 - 250 Amp Fuse
A blown fuse can bring equipment to a standstill. But a fuse that opens every time a motor starts? That's another headache nobody needs. The NCLR250 250 Amp Class R Time-Delay Fuse is built for electrical applications where handling normal startup surges is just as important as protecting against dangerous overcurrent conditions.
The NCLR250 is a cartridge-style, non-indicating fuse measuring 8.63 inches high, 2 inches wide, and 2 inches deep. Since there's no built-in blown-fuse indicator, technicians will need to use appropriate testing methods when checking its condition.
Key Features and Benefits
- 250 Amp Rating: Designed for compatible high-current electrical circuits.
- 600V AC Rating: Suitable for applications operating within its specified voltage limit.
- 200 kA Interrupting Capacity: Provides high short-circuit interruption capability.
- Time-Delay Protection: Helps accommodate normal motor startup surges.
- Current-Limiting Design: Helps reduce fault current and energy during short circuits.
- Class R Configuration: Intended for compatible Class R fuse applications.
- Cartridge-Style Fuse: Designed for use in matching fuse holders.
- Non-Indicating Design: Traditional cartridge configuration without a visual blown-fuse indicator.
Technical Specifications
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Part Number: NCLR250
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Product Type: Current-Limiting Cartridge Fuse
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Fuse Class: Class R
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Frame Type: NCLR
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Amperage: 250 Amps
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Voltage Rating: 600V AC
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Interrupting Rating (A.I.C.): 200 kA at 600V AC
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Operating Characteristic: Time-Delay
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Current-Limiting: Yes
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Fuse Style: Cartridge
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Indication Type: Non-Indicating
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Height: 8.63 inches
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Width: 2.0 inches
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Depth: 2.0 inches
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Dimensions (H × W × D): 8.63 × 2.0 × 2.0 inches
Material Compliance and Certifications
Electrical protection starts with choosing a fuse that meets the needs of the circuit. The NCLR250 carries a 250 amp rating, 600V AC voltage rating, and 200 kA interrupting capacity. Its time-delay and current-limiting characteristics are also important when evaluating it for equipment that experiences temporary startup surges.
Details about UL listing, CSA certification, RoHS compliance, and construction materials were not included in the available product specifications. If your project requires documented certifications or specific material compliance, check the manufacturer's technical documentation before installation.
Where It Works Best
- Industrial Motor Control Equipment
- Manufacturing Machinery
- Commercial Electrical Distribution Systems
- Industrial Control Panels
- Motor-Driven Equipment
- Processing and Production Facilities
- Electrical Systems With Startup Inrush Currents
- High-Current Circuit Protection
- Industrial Maintenance and Equipment Repairs
- Compatible Class R Fuse Applications
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Eaton®, Cutler-Hammer®, Westinghouse®, Challenger®, Bussmann®, Edison®, Edison Fuse®, GTE Sylvania®, Crouse-Hinds®, and Cooper® are registered trademarks of Eaton Corporation plc. Products sold are surplus, used, or refurbished and are NOT supplied by Eaton Corporation plc or its affiliates.
Specifications
- Width:2.0
- Depth:2.0
- Height:8.63
- Amperes:250
- A.I.C. Rating & Volts:200 kA @ 600 V.AC
- Type:NCLR
- Additional Notes:Cartridge Style, Non-Indicating, Time-Delay, current-limiting Class R Fuse
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